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CN103676364A - Display panel - Google Patents

Display panel Download PDF

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Publication number
CN103676364A
CN103676364A CN201310714129.4A CN201310714129A CN103676364A CN 103676364 A CN103676364 A CN 103676364A CN 201310714129 A CN201310714129 A CN 201310714129A CN 103676364 A CN103676364 A CN 103676364A
Authority
CN
China
Prior art keywords
liquid crystal
sub
crystal panel
panel
display panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310714129.4A
Other languages
Chinese (zh)
Inventor
何振伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201310714129.4A priority Critical patent/CN103676364A/en
Priority to US14/370,231 priority patent/US9612491B2/en
Priority to PCT/CN2014/070849 priority patent/WO2015089930A1/en
Publication of CN103676364A publication Critical patent/CN103676364A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/64—Normally black display, i.e. the off state being black
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/66—Normally white display, i.e. the off state being white

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The embodiment of the invention discloses a display panel. The display panel comprises a first liquid crystal display sub-panel, a second liquid crystal display sub-panel and a backlight module, wherein the first liquid crystal display sub-panel and the second liquid crystal display sub-panel are arranged in a stacked mode and are the same in shape, dimension and pixel setting. Pixels on the first liquid crystal display sub-panel align at pixels on the second liquid crystal display sub-panel one to one. The first liquid crystal display sub-panel is a normally white type liquid crystal display panel, and the second liquid crystal display sub-panel is a normally black type liquid crystal display panel. Light emitted by the backlight module is modulated sequentially through the first liquid crystal display sub-panel and the second liquid crystal display sub-panel to display images.

Description

Display panel
Technical field
The present invention relates to display panel field, relate in particular to fast display panel of a kind of reaction time.
Background technology
Existing display panel only has one deck liquid crystal molecule conventionally, according to the difference of its type of drive, divides into normal white display panel and normal black display panel.Yet individual layer liquid crystal molecule is to driving the rising reaction time of signal asymmetric with the reaction time that declines, described normal white display panel was longer than by printing opacity to the lighttight reaction time by the light tight reaction time to printing opacity, and described normal black display panel was longer than by the light tight reaction time to printing opacity by printing opacity to the lighttight reaction time.So, no matter be normal white display panel or normal black display panel, its reaction time all cannot reach best.
Therefore, need to provide the display panel structure that can address the above problem.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of display panel, it comprises the first sub-liquid crystal panel, second sub-liquid crystal panel and the backlight module of stacked setting.Described the first sub-liquid crystal panel and the second sub-liquid crystal panel are of similar shape size and pixel setting.Each pixel on described the first sub-liquid crystal panel is aimed at mutually with each pixel on the second sub-liquid crystal panel.Described the first sub-liquid crystal panel is normally white liquid crystal panel.Described the second sub-liquid crystal panel is common-black type liquid crystal panel.The light that described backlight module penetrates successively through the modulation of the first sub-liquid crystal panel and the second sub-liquid crystal panel to show image.
Wherein, described the first sub-liquid crystal panel and described the second sub-liquid crystal panel include colored filter substrate, upper polaroid, lower polaroid, liquid crystal molecule and thin film transistor base plate.Described upper polaroid is arranged on colored filter substrate.Described lower polaroid is arranged on thin film transistor base plate.Described liquid crystal molecule is folded between described colored filter substrate and thin film transistor base plate.
Wherein, the polarization direction of the upper polaroid of described the first sub-liquid crystal panel is mutually vertical with the polarization direction of lower polaroid.
Wherein, the polarization direction of the polarization direction of the upper polaroid of described the second sub-liquid crystal panel and lower polaroid is parallel to each other.
Wherein, the polarization direction of the polarization direction of the upper polaroid of described the second sub-liquid crystal panel and lower polaroid is parallel to each other.
Wherein, on described thin film transistor base plate, be provided with the multi-strip scanning line extending along first direction, many data lines, a plurality of thin film transistor (TFT) and the pixel electrode that along second direction, extend.
Wherein, described thin film transistor (TFT) is arranged on the place corresponding with data line intersection with sweep trace in each pixel cell.Each thin film transistor (TFT) comprises grid, source electrode and drain electrode.Described grid is connected with sweep trace.Described source electrode is connected with data line.Described drain electrode is connected with the pixel electrode that is positioned at pixel cell.
Wherein, also comprise at least one anisotropy phase compensation film being arranged between described the first sub-liquid crystal panel and described the second sub-liquid crystal panel.
Wherein, described anisotropy phase compensation film is selected from parallel optical axis phase compensation film, vertical optical axis phase compensation film and combination thereof.
Wherein, the optical axis direction of described parallel optical axis phase compensation film is parallel with film surface.The optical axis direction of described vertical optical axis phase compensation film is vertical with film surface.
Display panel provided by the present invention forms double face slab structure by collocation normally white liquid crystal panel and common-black type liquid crystal panel, the common-black type display panels of take provides the reaction time that shorter black picture conversion is white picture, and the reaction time that it is black picture that the normally white display panels of take provides compared with short white picture conversion is improved the reaction time of whole display panel when showing.Meanwhile, by between two panels, add anisotropy phase compensation film come limited angular depart from compared with large light never over against pixel cell penetrate the wide viewing angle display effect improve display panel.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the display panel that provides of first embodiment of the invention;
Fig. 2 is that display panel in Fig. 1 is along the cut-open view of II-II line;
Fig. 3 is the partial sectional view of the display panel in Fig. 1;
Fig. 4 is the cut-open view of the display panel that provides of second embodiment of the invention;
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
See also shown in Fig. 1, Fig. 2 and Fig. 3, display panel that first embodiment of the invention provides 1 comprises the first sub-liquid crystal panel 12 of sub-liquid crystal panel 10, second and backlight module 14 of stacked setting.Described the first sub-liquid crystal panel 10 and the second sub-liquid crystal panel 12 are of similar shape size and pixel setting.Each pixel on described the first sub-liquid crystal panel 10 is aimed at mutually with each pixel on the second sub-liquid crystal panel 12.Described the first sub-liquid crystal panel 10 is normally white liquid crystal panel.Described the second sub-liquid crystal panel 12 is common-black type liquid crystal panel.The light that described backlight module 14 penetrates successively through the modulation of the first sub-liquid crystal panel 10 and the second sub-liquid crystal panel 12 to show image.
Described the first sub-liquid crystal panel 10 is basic identical with the structure of described the second sub-liquid crystal panel 12, includes colored filter substrate 100, upper polaroid 102, lower polaroid 104, liquid crystal molecule 106 and thin film transistor base plate 108.Described upper polaroid 102 is arranged on colored filter substrate 100.Described lower polaroid 104 is arranged on thin film transistor base plate 108.Described liquid crystal molecule 106 is folded between described colored filter substrate 100 and thin film transistor base plate 108.
On described thin film transistor base plate 108, be provided with the multi-strip scanning line 110 extending along first direction, many data lines 112, a plurality of thin film transistor (TFT) 114 and the pixel electrode 116 that along second direction, extend.Described sweep trace 110 is crisscross to define a plurality of pixel cells 118 that matrix is arranged that are with data line 112.Described thin film transistor (TFT) 114 is arranged on the place corresponding with data line 112 intersections with sweep trace 110 in each pixel cell 118.Each thin film transistor (TFT) 114 comprises grid 1140, source electrode 1142 and drain electrode 1144.Described grid 1140 is connected with sweep trace 110.Described source electrode 1142 is connected with data line 112.Described drain electrode 1144 is connected with the pixel electrode 116 that is positioned at pixel cell 118.When described thin film transistor (TFT) 114 is selected by the grid 1140 that is connected with sweep trace 110, the source electrode 1142 of described thin film transistor (TFT) 114 and drain electrode 1144 conductings.The display being transmitted by described data line 112 reaches on pixel electrode 116 for driving liquid crystal molecule 106 through source electrode 1142 and drain electrode 1144.
The polarization direction of the upper polaroid 102 of described the first sub-liquid crystal panel 10 is mutually vertical with the polarization direction of lower polaroid 104.When pixel electrode 116 does not apply voltage to liquid crystal molecule 106, through the light backlight of lower polaroid 104 liquid crystal molecule 106 rear polarizer direction rotations 90 degree through aligned twisted just in time from polaroid 102 outgoing, the first sub-liquid crystal panel 10 is shown often in vain at making alive not.When 116 pairs of liquid crystal molecules 106 of pixel electrode apply voltage, liquid crystal molecule 106 does not exert an influence to the polarization direction of the light backlight passing along direction of an electric field proper alignment, making mutually on the contrary cannot outgoing through the polarization direction of light backlight of lower polaroid 104 and the polarization direction of upper polaroid 102, and the first sub-liquid crystal panel 10 now shows black picture.
The polarization direction of the upper polaroid 102 of described the second sub-liquid crystal panel 12 and the polarization direction of lower polaroid 104 are parallel to each other.When pixel electrode 116 does not apply voltage to liquid crystal molecule 106, just in time vertical with the polarization direction of upper polaroid 102 and cannot outgoing at liquid crystal molecule 106 rear polarizer direction rotations 90 degree through aligned twisted through the light backlight of lower polaroid 104, make the first sub-liquid crystal panel 10 in not making alive black demonstration often.When 116 pairs of liquid crystal molecules 106 of pixel electrode apply voltage, liquid crystal molecule 106 does not exert an influence to the polarization direction of the light backlight passing along direction of an electric field proper alignment, make through the parallel and outgoing in the polarization direction of light backlight of lower polaroid 104 and the polarization direction of upper polaroid 102, the second sub-liquid crystal panel 12 now shows white picture.
Because described the first sub-liquid crystal panel 10 is normally white liquid crystal panel, the reaction time that its reaction time that is white picture by black picture conversion is black picture compared with length by white picture conversion is shorter.Described the second sub-liquid crystal panel 12 is normal black property liquid crystal panel, and its reaction time that is black picture by white picture conversion is shorter compared with the reaction time long and that be white picture by black picture conversion.Described the first sub-liquid crystal panel 10 and the second sub-liquid crystal panel 12 mutually during stack black picture conversion be to be provided by the second sub-display panels of common-black type in reaction time of white picture, the first sub-liquid crystal panel 10 of the reaction time that white picture conversion is black picture by normally white provides.So display panel of the present invention is compared and is had the shorter reaction time with independent normal black property liquid crystal panel or normally white liquid crystal panel.
As shown in Figure 4, the structure of the display panel 1 that the structure of the display panel 2 that second embodiment of the invention provides and the first embodiment provide is basic identical, and its difference is: described display panel 2 also comprises at least one anisotropy phase compensation film 24 being arranged between described the first sub-liquid crystal panel 20 and described the second sub-liquid crystal panel 22.Described anisotropy phase compensation film 24 is selected from parallel optical axis phase compensation film (A-Plate film), vertical optical axis phase compensation film (C-Plate film) and combination thereof.The optical axis direction of described parallel optical axis phase compensation film is parallel with film surface.The optical axis direction of described vertical optical axis phase compensation film is vertical with film surface.
Because can there is a determining deviation between described the first sub-liquid crystal panel 20 and the second sub-liquid crystal panel 22, so through the light of the first or second sub-liquid crystal panel 20,22 that is positioned at lower floor when angle is bigger than normal can via the first or second sub-liquid crystal panel 20,22 that is positioned at upper strata not mutually over against adjacent pixel unit 218 penetrate, thereby affect the display effect of display panel 2 within the scope of wide viewing angle.And by adding anisotropy phase compensation film 24 can make to show that light in light path produces the optically focused that light and shade distributes in being created in space because of different phase delay and interferes (Conoscopy) phenomenon between the first sub-liquid crystal panel 20 and the second sub-liquid crystal panel 22.Utilize this phenomenon, the thickness of adjusting described anisotropy phase compensation film 24 according to the size of pixel cell 218 make not over against adjacent pixel unit 218 in dark areas can prevent light not over against adjacent pixel unit 218 in penetrate, thereby improve the wide viewing angle performance of display panel 2.
Display panel 1 of the present invention forms double face slab structure by collocation normally white liquid crystal panel and common-black type liquid crystal panel, the common-black type display panels of take provides the reaction time that shorter black picture conversion is white picture, and the reaction time that it is black picture that the normally white display panels of take provides compared with short white picture conversion is improved the reaction time of whole display panel when showing.Meanwhile, by between two panels, add anisotropy phase compensation film come limited angular depart from compared with large light never over against pixel cell 118 penetrate the wide viewing angle display effect of improving display panel.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.

Claims (10)

1. a display panel (1), it comprises the first sub-liquid crystal panel (10) of stacked setting, the second sub-liquid crystal panel (12) and backlight module (14), described the first sub-liquid crystal panel (10) is of similar shape size and pixel setting with the second sub-liquid crystal panel (12), each pixel on described the first sub-liquid crystal panel (10) is aimed at mutually with each pixel on the second sub-liquid crystal panel (12), described the first sub-liquid crystal panel (10) is normally white liquid crystal panel, described the second sub-liquid crystal panel (12) is common-black type liquid crystal panel, the light that described backlight module (14) penetrates successively through the modulation of the first sub-liquid crystal panel (10) and the second sub-liquid crystal panel (12) to show image.
2. display panel as claimed in claim 1 (1), it is characterized in that, described the first sub-liquid crystal panel (10) and described the second sub-liquid crystal panel (12) include colored filter substrate (100), upper polaroid (102), lower polaroid (104), liquid crystal molecule (106) and thin film transistor base plate (108), described upper polaroid (102) is arranged on colored filter substrate (100), described lower polaroid (104) is arranged on thin film transistor base plate (108), described liquid crystal molecule (106) is folded between described colored filter substrate (100) and thin film transistor base plate (108).
3. display panel as claimed in claim 2 (1), is characterized in that, the polarization direction of the upper polaroid (102) of described the first sub-liquid crystal panel (10) is mutually vertical with the polarization direction of lower polaroid (104).
4. display panel as claimed in claim 2 (1), is characterized in that, the polarization direction of the upper polaroid (102) of described the second sub-liquid crystal panel (12) and the polarization direction of lower polaroid (104) are parallel to each other.
5. display panel as claimed in claim 2 (1), is characterized in that, the polarization direction of the upper polaroid (102) of described the second sub-liquid crystal panel (12) and the polarization direction of lower polaroid (104) are parallel to each other.
6. display panel as claimed in claim 2 (1), it is characterized in that, on described thin film transistor base plate (108), be provided with the multi-strip scanning line (110) extending along first direction, many data lines (112), a plurality of thin film transistor (TFT) (114) and the pixel electrode (116) that along second direction, extend.
7. display panel as claimed in claim 6 (1), it is characterized in that, described thin film transistor (TFT) (114) is arranged on the place corresponding with data line (112) intersection with sweep trace (110) in each pixel cell (118), each thin film transistor (TFT) (114) comprises grid (1140), source electrode (1142) and drain electrode (1144), described grid (1140) is connected with sweep trace (110), described source electrode (1142) is connected with data line (112), and described drain electrode (1144) is connected with the pixel electrode (116) that is positioned at pixel cell (118).
8. display panel as claimed in claim 1 (1), is characterized in that, also comprises at least one anisotropy phase compensation film (24) being arranged between described the first sub-liquid crystal panel (10) and described the second sub-liquid crystal panel (12).
9. display panel as claimed in claim 8 (1), it is characterized in that, described anisotropy phase compensation film (24) is selected from parallel optical axis phase compensation film (A-Plate film), vertical optical axis phase compensation film (C-Plate film) and combination thereof.
10. display panel as claimed in claim 9 (1), is characterized in that, the optical axis direction of described parallel optical axis phase compensation film is parallel with film surface, and the optical axis direction of described vertical optical axis phase compensation film is vertical with film surface.
CN201310714129.4A 2013-12-20 2013-12-20 Display panel Pending CN103676364A (en)

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